201220212211222 has 8 divisors (see below), whose sum is σ = 304651162413576. Its totient is φ = 99669824740032.

The previous prime is 201220212211217. The next prime is 201220212211259. The reversal of 201220212211222 is 222112212022102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 201220212211193 and 201220212211202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470140682523 + ... + 470140682950.

It is an arithmetic number, because the mean of its divisors is an integer number (38081395301697).

Almost surely, 2^{201220212211222} is an apocalyptic number.

201220212211222 is a deficient number, since it is larger than the sum of its proper divisors (103430950202354).

201220212211222 is a wasteful number, since it uses less digits than its factorization.

201220212211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940281365582.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 201220212211222 its reverse (222112212022102), we get a palindrome (423332424233324).

The spelling of 201220212211222 in words is "two hundred one trillion, two hundred twenty billion, two hundred twelve million, two hundred eleven thousand, two hundred twenty-two".